Generation of thermofield double states and critical ground states with a quantum computer

@article{Zhu2020GenerationOT,
  title={Generation of thermofield double states and critical ground states with a quantum computer},
  author={D. Zhu and S. Johri and N. Linke and K. Landsman and C. Huerta Alderete and N. Nguyen and A. Matsuura and T. Hsieh and C. Monroe},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2020},
  volume={117},
  pages={25402 - 25406}
}
  • D. Zhu, S. Johri, +6 authors C. Monroe
  • Published 2020
  • Medicine, Mathematics, Physics
  • Proceedings of the National Academy of Sciences of the United States of America
  • Significance Our experiment prepares two types of nontrivial quantum states on a trapped ion quantum computer: the thermofield double state of the transverse-field Ising model at arbitrary temperature and the quantum critical state of the zero-temperature model. We use techniques motivated by the quantum approximate optimization algorithm, and we implement a hybrid quantum–classical optimization loop to prepare the quantum critical state. Our results pave the way for exploring strongly… CONTINUE READING
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